https://forums.garmin.com/showthread.php?365865-Software-Version-9-10-Now-Available!
Changes made from version 8.40 to 9.10:
Added support for Connect IQ 1.4.1 SDK. See the Connect IQ 1.4.1 SDK for a list of new features.
Added support for automatically starting a LiveTrack session at the beginning of an activity if that setting is enabled in Garmin Connect Mobile.